• Compact keyboard G84-4400 with trackball• Single keys with Gold Crosspoint contacts (MX technology)• Designed for continuous usage - over 20 million presses per key• High level of reliability and unique precision in keystroke• Integrated trackball plus 2 mouse buttons• Very flat - overall height only 20 mm• Low weight• 84-keys layout with full functionality of a standard keyboard• Can be used with the standard drivers of the operating system• Ideal where space is limited and for 19" applications